DemoFor public education only. These blocks are built by PisoScan from published PhilGEPS records to show how a budget ledger like CADENA would work. No government agency created or signed them, and this is not an official ledger. How it works

Transaction details

API

Transaction action

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - BATAAN 1ST DEO Award a ₱6.4M contract to R.Z. TIGAS CONSTRUCTION AND TRADINGNational agencies

Transaction hash:

da7496ff4df90be6513a20f344e738bed07ca84bd3f4d6e743ae2b9b2eec1cd6

Status:

Included and unchanged

Block:

#1,553 4,460 blocks after it

Position in block:

Transaction 69 of 82

Award day:

Sep 7, 2012 (14 yrs 2 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - BATAAN 1ST DEO

To:

R.Z. TIGAS CONSTRUCTION AND TRADING

Value:

₱6,363,033.05

Project:

Repair/Rehabilitation/Improvement and Construction of Drainage Canal and Flood Control, Felipe Irrigation Canal, Calaylayan, Abucay, Bataan and other 9 barangays in Bataan

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - BATAAN 1ST DEO

Accountable officer:

Not stated in the source. PhilGEPS does not publish who certified the award.

Certification:

Not certified No agency signed this record. Under CADENA the accountable officer would sign it with their own key.

Demo signature:

Block #1,553 signature valid Demo key, proves nothing about the governmentPublic key

Linked records: from budget to payment

Bill Sec. 5

1. Appropriation
GAA line item · Sec. 5(b)
The award does not say which budget line pays for it.
Not published
2. Allotment release
SARO / allotment · Sec. 5(c)(iii)
Not published per project. DBM releases SAROs, but not linked to individual contracts.
Not published
3. Cash allocation
Notice of Cash Allocation · Sec. 5(c)(iv)
Not published per project.
Not published
4. Contract award
Notice of Award (PhilGEPS) · Sec. 5(d)
DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - BATAAN 1ST DEO awarded it to R.Z. TIGAS CONSTRUCTION AND TRADING on 2012-09-07.
Found
Open
5. Contract & progress
Contract / progress report (DPWH) · Sec. 5(d)
No matching DPWH contract record (only DPWH contracts are listed with progress).
Not published
6. Payment
Disbursement voucher · Sec. 5(c)(viii)
Not published. No public source shows how much of this contract has been paid.
Not published
7. Completion
Certificate of completion · Sec. 5(d)
No completion certificate published.
Not published
8. Audit
COA annual audit report · Sec. 5(e)(iii)
No COA finding linked to this contract.
Not published

1 of 8 documents found, 0 partly. Under CADENA every step would be published within 7 working days and linked to this record.

Tamper test: try changing this record

Demo

Edit the amount as if someone quietly changed the record. Your browser re-hashes it and walks up the chain. Nothing is saved.

Contract amount (₱)

1. Record fingerprint changed
stored da7496ff4d…ec1cd6now …
2. Block Merkle root changed
stored 311d4fc478…204640now …
3. Block #1553 hash changed
stored dbf3930fba…1d3141now …

Chain intact. The record matches its fingerprint, so the block and every block after it still line up.

Merkle proof (7 steps)

How this one record is tied to the block's Merkle root, without needing the other 81 records. Each step hashes the current value together with the sibling shown.

leaf da7496ff4df90be6513a20f344e738bed07ca84bd3f4d6e743ae2b9b2eec1cd6
01 L d5beb1149f2374b3b839b7e1e3de64a553142812eb25173791255b15a5449d5d
02 R 1c005a9639ead7b9728d8e2abbf1375d32ac02ce29732be9445c7fcf602f537f
03 L a4cb3578c4d45e62eec6eff35aae1a8ad1990ac9882f3c92a8a85f15470ebfa2
04 R 7bf1878ccd22ab893d23e8bdc50105aab2c99c77845efe49923ca0f6d3cab54f
05 R 6a6b1938f45b181a88249a36e13200c1959810815937293b9a8df6145e51b3a2
06 R 1c842aad1ea56bf70aab1be98ed545356cb1527d64345fe8a8dbc9339681f46e
07 L 342f267989eba67e55ef696bbdd0ab07d9cbd4a3fa3122d53a3ac91740703103
root 311d4fc47864a2255383ff26e06949bfa3dd2d0538be39674a44e8287e204640